MORE ON MANUAL MUSCLE TESTING
Manual muscle testing is a form of biofeedback, and is commonly used for the evaluation of muscle imbalance. The first textbook on manual muscle testing appeared in 1949 to evaluate muscle weakness in polio patients, and gradually, muscle-testing techniques were improved for the evaluation of a full range of muscle dysfunction in all types of individuals. Today, manual muscle testing is used by tens of thousands of health-care professionals worldwide. The objective of muscle testing differs considerably among its users, with most using it as a form of assessment. For example:

 

 

 
  • Neurologists perform muscle testing to help evaluate brain function.
  • A physical therapist may use muscle testing to rate a patient’s level of disability.
  • An athletic trainer may use muscle testing to assess a particular athletic injury.
  • Chiropractors, osteopaths, and other medical doctors may use manual muscle testing as a form of assessment for all these and other reasons.
While the purpose of manual muscle testing is widely varied, there is one common feature among all the professionals using it: manual muscle testing is an important form of biofeedback used to help evaluate physical body function, especially in helping to determine muscle imbalance.
Manual muscle testing involves physically evaluating individual muscles. This is accomplished by first positioning an arm, leg, or other body part associated with a particular muscle’s action. In this position, the practitioner applies force against the athlete’s force. If the athlete cannot properly maintain resistance, it may indicate abnormal inhibition (“weakness”). In addition, a muscle that functions well does not do so only because it is powerful or strong.
Even a very powerful weight lifter can have abnormal muscle inhibition, and the frailest, most out-of-shape elderly person can have muscle facilitation.

If your breathing is not normal, it’s important to immediately retrain the breathing mechanism. This can be done using respiratory biofeedback (see chapter 28). The procedure is simple, using the steps just outlined above for normal inhalation and exhalation.

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